/Engine/Source/Runtime/AppFramework/Public/Widgets/Workflow/SWizard.h
Gets the index of the specified wizard page widget.
The index of the page, or INDEX_NONE if not found.
int32 GetPageIndex ( const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > & PageWidget ) const